The Effect of Dairy on Bone Mass and Body Composition in 4th-8th Grade Boys and Girls (B3)

May 3, 2018 updated by: Berdine Martin, Purdue University

Influence of Dairy on Bone Accrual and Bone Size and Fat and Lean Mass in Early Pubertal Overweight vs. Healthy-weight Boys and Girls

Building stronger bones during pubertal growth could reduce lifelong fracture risk. This project is an 18 month dairy intervention study for overweight and healthy weight 4th-8th grade boys and girls. Half of the girls will receive dairy products to add to their habitual diet (milk, yogurt, and cheese) to equal three products per day, while the other half will remain on their normal diet. All participants will attend four study visits, each 6 months apart. At these visits height, weight, bone density and geometry, and fat and lean mass will be measured. This study aims to show that meeting calcium requirements by eating dairy products builds bigger, stronger bones, and that this effect may be enhanced in overweight boys and girls. The effect of the dairy intervention on body fat, lean mass, and weight, as well as the mechanisms and predictors of changes in bone mass and size and body composition will also be evaluated.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

47

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Indiana
      • Indianapolis, Indiana, United States, 46202
        • Indiana University School of Medicine
      • West Lafayette, Indiana, United States, 47907
        • Purdue University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

9 years to 14 years (Child)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Males and females in 4th-8th grade
  • Generally healthy
  • BMI percentile 5-70% for age or >85% for age
  • Baseline calcium intake less than or equal to 800mg/d

Exclusion Criteria:

  • History of any illness known to affect bone mass accrual (diabetes, inflammatory bowel disease, childhood malignancy).
  • A broken bone in the last six months.
  • Consume more than 800 mg Calcium/d.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Increased Dairy Consumption
Increased Dairy Consumption - Each subject in this arm will receive three additional servings of dairy to consume each day for 18 months.
Other: Increased Dairy Consumption

3 additional servings of dairy (two of which must be milk or yogurt)

  • 8 oz milk
  • 6 oz yogurt
  • 1.5 oz cheese
Other Names:
  • Prairie Farms Milk
  • Prairie Farms Yogurt
No Intervention: Control
This group will not receive the intervention but will continue their normal diet; they will act as the control.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Changes in bone density and geometry as measured with DEXA and pQCT.
Time Frame: 18 months
18 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Changes in fat and lean body mass as measured with DEXA.
Time Frame: 18 months
18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Purdue University

Collaborators

Indiana University School of Medicine
Dairy Management Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 1, 2008

Primary Completion (Actual)

June 1, 2012

Study Completion (Actual)

June 1, 2012

Study Registration Dates

First Submitted

March 6, 2008

First Submitted That Met QC Criteria

March 12, 2008

First Posted (Estimate)

March 13, 2008

Study Record Updates

Last Update Posted (Actual)

May 9, 2018

Last Update Submitted That Met QC Criteria

May 3, 2018

Last Verified

May 1, 2018

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 1482 (CSL Behring)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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